Airworthiness directives › 2003-20-09
AD 2003-20-09 Airworthiness Directives; Stemme GmbH & Co. KG Model STEMME S10-VT Sailplanes
Applicability*9
(c) This AD affects all Model STEMME S10-VT sailplanes that: (1) Incorporate a part number (P/N) 11AG gear box (serial numbers 43YYQ001 through 43YYQ093); and (2) Are certificated in any category:
Required actions
(e) To address this problem, you must accomplish the following: Actions Compliance Procedures (1) Incorporate the following flight restrictions into the Limitations Section of the flight manual: (i) “The operation of the engine will be limited to maximum 100% power (max. continuous power).” and (ii) “Hence the take-off procedure (take-off with take-off power 115%, see section 4.5.2.2, of the Flight Manual) must not be selectd. Alternative procedures ( i.e., take-off with max. continuous power 100%) are published in the flight Manual.” Within the next 10 days after October 20, 2003 (the effective date of this AD), unless already accomplished Either insert a copy of this portion of the AD or Stemme Service Bulletin A31-10-065, Am.-Index: 02a, dated February 25, 2003, into the Limitations Section of this of the AFM. The owner/operator holding at least a private pilot certificate as authorized by section 43.7 Federal Aviation Regulations (14 CFR 43.7) may do this flight manual insertion. Make an entry into the aircraft records showing compliance with these portions of the AD in accordance with section 43.9 of the Federal Aviation regulations (14 CFR 43.9). (2) Fabricate a placard that incorporates the following words (using at least 1/8-inch letters) and install this placard close to the throttle lever: “Operation above 100% continuous power is not allowed! (see SB A31-10-1065).” Within the next 10 days after October 20, 2003 (the effective date of this AD), unless already accomplished No specific procedures are necessary for this action. Stemme Service Bulletin A31-10-065, Am.-Index: 02a, dated February 25, 2003, references this action. The owner/operator holding at least a private pilot certificate as authorized by section 43.7 of the Federal Aviation Regulations (14 CFR the throttle 43.7) may do the placard requirements. Make an entry into the aircraft records showing compliance with these portions of the AD in accordance with section 43.9 of the Federal Aviation (14 CFR 43.9). (3) As an alternative method of compliance to this AD, replace the lower cog wheel (P/N: 43.15.0028) with a modified cog wheel (P/N: 43:15:0043) At any time as terminating action for the limitations and placard requirements of this AD Use the instructions in Stemme Service Bulletin A31-10-065, Am.-Index: 02a, dated February 25, 2003.
Unsafe condition
(d) This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. We are issuing this AD to prevent the potential for the lower cog wheel in the gear box to rupture, which could result in loss of power and possible loss of control of the sailplane.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1